Title

By: Colby Emery and Gianna Jones
Strike Out

Problem Scenario

• Friction
• Air Resistance
• Bad weather

Broad Question

Does more weight create more acceleration?

Specific Question

What will happen when the different mass of a ball is hit with the same amount of power? (Softball, baseball, wiffle ball)

Hypothesis

It is hypothesized that with the more mass of an object hit with the same power will increasingly go farther in distance.

Graph of Hypothesis

Variables

Independent Variable:

Ball (height, weight, circumference)

Dependent Variable:

Distance the ball is traveled

Variables That Need To Be Controlled:

Batter (Colby a.k.a me), stance, bat, destination, measuring tape, tee, same type of day

Vocabulary List That Needs Explanation

• Acceleration - The increase of speed
• Resistance - The act of resisting
• Friction - Two objects that will collide

---

---

---

---

General Plan

A softball, baseball and a wiffle ball, will be used to determine if mass affects the distance a ball will travel after being hit off a baseball tee. A baseball tee will be set up on a level piece of ground. The subject will hit each ball off the tee ten times and the distance the ball traveled will be measured. The mean distance traveled for each ball will be calculated. This experiment will be controlled by using the same batter, batter stance, and by making sure the tee is lined up at the same height each time. If the weather is not conducive for this experiment, it can be postponed until it is a clear, non-windy day.

Potential Problems And Solutions

Safety Or Environmental Concerns

Experimental Design

(add the correct headings from the experimental design page before beginning)

Resources and Budget Table

Independent Variable (Type of ball)	Dependant Variable (Distance traveled)	Trial 1:	Trial 2:	Trial 3:	Trial 4:	Trial 5:	Trial 6:	Trial 7:	Trial 8:	Trial 9:	Trial 10:	Mean Distance:
Softball	[Converted into Meters]	5.38	4.88	3.38	5.29	5.84	5.77	5.33	4.50	4.42	4.48	4.927
Wiffle Ball	[Converted into Meters]	6.86	6.50	7.24	4.50	4.85	4.57	5.31	6.48	4.80	5.06	4.707
Baseball	[Converted into Meters]	3.59	4.98	3.99	3.57	4.88	3.38	6.45	6.48	4.50	5.31	5.617

Time Line
1. Complete design and collection of all materials (jbes) Friday March 2, 2012
2. Run a test of the set up, not collecting data, just seeing if everything works (jbes)Saturday March 9, 2012
3. Run first official trials of experiment, collecting first data (jbes) Friday March 16, 2012
4. Complete all trials of experiment and all data collection (home) Saturday March 17, 2012
5. Complete all data analysis; mean, median, range, graphs (school) Friday March 23, 2012
6. Complete results and conclusions (home) Sunday March 25, 2012
7. Display board due (home) Friday April 27, 2012

---

---

---

---

Background Research

References

Detailed Procedure

1. Gather all materials above in the materials section.
2. Find the mass of the three balls(Softball, Baseball, Wiffle Ball) by using a scale. (GRAMS) Record this under the "Weight/Mass" column in the table below. You will not need to find the height of the three balls.
3. Find the height of the tee (tee should be equal in height to the batters belly button from the ground) and softball bat by using the measuring tape. This should be measured in feet. Record this under the "Height" column in the table below.
4. The scale can be used to measure the objects (softball bat, tee) weights if the experimenter would like(grams). If chosen to weigh the softball bat and tee, record this in the "weight/mass" column in the table below.
5. Find a level spot on the driveway where the experiment will take place. Place the softball on the tee. Make sure the softball is steady before beginning experiment.
6. The batter now needs to get in the proper batting position. (Picture will show the proper batting stance, follow steps below)
7. The batter will need to stand behind the tee with the ball on it, so that they are capable of hitting the ball forward.
8. Hold the softball bat so that the bottom of the bat lines up with the batters belly button (1/2 foot away). Aline your front foot with the front of the tee, approximetley 1 ft. away
9. Holding the bat horizontally, the batter needs to move their body at 90 degree angle back, before stopping, the batter should now move their body forward at another180 degree angle, hitting the softball with the softball bat.
10. After the ball has landed,the next step is to measure the distance that the ball has traveled and landed at.
11. Starting at the tee, carry the measuring tape until it has reached the destination in which the softball has landed at. (Video Camera will be set)
12. Make sure the measuring that you have done is as accurate as possible by having your partner double check it. (COMPLETE THIS STEP BY USING FT.)
13. Record this under the first trial space in "distances traveled" column.
14. Follow steps 5-10 nine more times with the same strength applied to the swing and the same ball (softball).
15. Record data from all ten trials under the softball's "Distances Traveled" column. This should be determined using feet.
16. Repeat steps 5-13 with the baseball, and the wiffle ball.
17. After all ten trials are completed with all three balls, the experimenter must find the mean of the data for each of the balls.
18. Record the mean of each ball under the correct "Mean" column for each of them. This should be determined and recorded by using feet.
19. Clean up the remainders of the experiment, returning anything that was borrowed. Collect all personal belongings.
20. Keep notebook with results/graphs.

Diagram

Photo List

---

---

---

---

---

Results

All Raw Data

Graphs

Photos

---

---

---

---

---

Data Analysis

Conclusion

---

---

---

---

---

Discussion

Benefit to Community and/or Science

Abstract